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- Establish a SSH tunnel through the jumphost "skyhigh.hig.no" by executing the following command on your terminal:
#ssh [NTNU-username]@skyhigh.hig.no
e.g: ssh danil@skyhigh.hig.no
- use your NTNU user name in order to log into the jumphost - After having logged in into skyhigh.hig.no, start an SSH connection to your virtual machine in openstack by executing the following command:
#ssh -i $HOME/.ssh/ntnu-openstack.pem ubuntu@vm-ip-address
e.g: #ssh -i /home/danil/.ssh/my-private-key.pem user@172.16.1.140
- use the private-key that you generated/uploaded when creating the virtual machine through the openstack webinterface.
If your virtual machine in openstack hosts a web server running and you need to access the website running on that server, follow the following steps:
Do not forget to enable (inside openstack) ingress traffic to the corresponding ports (e.g. 80, 443) at the corresponding security group.
- Establish a SSH tunnel through the jumphost "skyhigh.hig.no" by executing the following command on your terminal:
# ssh -D [local-port][ntnu-username]@skyhigh.hig.no
# ssh -D 9000 danil@skyhigh.hig.no
- use your NTNU user name in order to log into the jumphost
- before establishing the SSH connection make sure that the selected port (e.g. 9000) is not currently being used by another process. The availability of a port on a Linux machine can be checked with the following command: #netstat -tulpn . If the port is listed in the output, this means that the port is already being used by a process. In that case you will need to select a different port. - Enable proxy configuration on your browser. The following steps apply only for Firefox:
- Go to Firefox Preferences -> Advanced -> Network -> Settings:
- Inside settings, select Manual proxy configurations and enter 127.0.0.1 plus your chosen port (e.g. 9000)
- Click OK to accept the changes.
- Browse to http://www.minip.no/ (with Firefox) to check whether you are connected to the skyhigh.hig.no network. You should now be able to access the website running on your web server.
- Go to Firefox Preferences -> Advanced -> Network -> Settings:
PPTP VPN
If you would like to have IP connectivity between your machine and machines in skyhigh directly, without using SSH tunneling, there are a PPTP VPN service available. Please contact Eigil or Lars Erik for credentials to this service.